/*
 * Copyright(c) 2019 Free Software Foundation, Inc.
 *
 * This file is part of libtasn1.
 *
 * Libtasn1 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Libtasn1 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with libtasn1.  If not, see <https://www.gnu.org/licenses/>.
 *
 * This fuzzer is testing arbitrary DER input data with GnuTLS's ASN.1 definition (lib/pkix.asn).
 * So, any issues found here likely have a real world impact on every software using libgnutls.
 */

#include <config.h>

#include <assert.h> // assert
#include <stdlib.h> // malloc, free
#include <string.h> // strcmp, memcpy

#include "libtasn1.h"
#include "fuzzer.h"

/*
 * This is the ASN.1 definition array used by GnuTLS.
 * It is created from lib/pkix.asn over at the GnuTLS project.
 */
static const asn1_static_node pkix_asn1_tab[] = {
  { "PKIX1", 536875024, NULL },
  { NULL, 1073741836, NULL },
  { "PrivateKeyUsagePeriod", 1610612741, NULL },
  { "notBefore", 1610637349, NULL },
  { NULL, 4104, "0"},
  { "notAfter", 536895525, NULL },
  { NULL, 4104, "1"},
  { "AuthorityKeyIdentifier", 1610612741, NULL },
  { "keyIdentifier", 1610637319, NULL },
  { NULL, 4104, "0"},
  { "authorityCertIssuer", 1610637314, "GeneralNames"},
  { NULL, 4104, "1"},
  { "authorityCertSerialNumber", 536895490, "CertificateSerialNumber"},
  { NULL, 4104, "2"},
  { "SubjectKeyIdentifier", 1073741831, NULL },
  { "KeyUsage", 1073741830, NULL },
  { "DirectoryString", 1610612754, NULL },
  { "teletexString", 1612709918, NULL },
  { "MAX", 524298, "1"},
  { "printableString", 1612709919, NULL },
  { "MAX", 524298, "1"},
  { "universalString", 1612709920, NULL },
  { "MAX", 524298, "1"},
  { "utf8String", 1612709922, NULL },
  { "MAX", 524298, "1"},
  { "bmpString", 1612709921, NULL },
  { "MAX", 524298, "1"},
  { "ia5String", 538968093, NULL },
  { "MAX", 524298, "1"},
  { "SubjectAltName", 1073741826, "GeneralNames"},
  { "GeneralNames", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "GeneralName"},
  { "GeneralName", 1610612754, NULL },
  { "otherName", 1610620930, "AnotherName"},
  { NULL, 4104, "0"},
  { "rfc822Name", 1610620957, NULL },
  { NULL, 4104, "1"},
  { "dNSName", 1610620957, NULL },
  { NULL, 4104, "2"},
  { "x400Address", 1610620941, NULL },
  { NULL, 4104, "3"},
  { "directoryName", 1610620939, NULL },
  { NULL, 1073743880, "4"},
  { NULL, 2, "RelativeDistinguishedName"},
  { "ediPartyName", 1610620941, NULL },
  { NULL, 4104, "5"},
  { "uniformResourceIdentifier", 1610620957, NULL },
  { NULL, 4104, "6"},
  { "iPAddress", 1610620935, NULL },
  { NULL, 4104, "7"},
  { "registeredID", 536879116, NULL },
  { NULL, 4104, "8"},
  { "AnotherName", 1610612741, NULL },
  { "type-id", 1073741836, NULL },
  { "value", 541073421, NULL },
  { NULL, 1073743880, "0"},
  { "type-id", 1, NULL },
  { "IssuerAltName", 1073741826, "GeneralNames"},
  { "BasicConstraints", 1610612741, NULL },
  { "cA", 1610645508, NULL },
  { NULL, 131081, NULL },
  { "pathLenConstraint", 537411587, NULL },
  { "0", 10, "MAX"},
  { "CRLDistributionPoints", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "DistributionPoint"},
  { "DistributionPoint", 1610612741, NULL },
  { "distributionPoint", 1610637314, "DistributionPointName"},
  { NULL, 2056, "0"},
  { "reasons", 1610637314, "ReasonFlags"},
  { NULL, 4104, "1"},
  { "cRLIssuer", 536895490, "GeneralNames"},
  { NULL, 4104, "2"},
  { "DistributionPointName", 1610612754, NULL },
  { "fullName", 1610620930, "GeneralNames"},
  { NULL, 4104, "0"},
  { "nameRelativeToCRLIssuer", 536879106, "RelativeDistinguishedName"},
  { NULL, 4104, "1"},
  { "ReasonFlags", 1073741830, NULL },
  { "ExtKeyUsageSyntax", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 12, NULL },
  { "AuthorityInfoAccessSyntax", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "AccessDescription"},
  { "AccessDescription", 1610612741, NULL },
  { "accessMethod", 1073741836, NULL },
  { "accessLocation", 2, "GeneralName"},
  { "Attribute", 1610612741, NULL },
  { "type", 1073741836, NULL },
  { "values", 536870927, NULL },
  { NULL, 13, NULL },
  { "AttributeTypeAndValue", 1610612741, NULL },
  { "type", 1073741836, NULL },
  { "value", 13, NULL },
  { "Name", 1610612754, NULL },
  { "rdnSequence", 536870923, NULL },
  { NULL, 2, "RelativeDistinguishedName"},
  { "DistinguishedName", 1610612747, NULL },
  { NULL, 2, "RelativeDistinguishedName"},
  { "RelativeDistinguishedName", 1612709903, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "AttributeTypeAndValue"},
  { "Certificate", 1610612741, NULL },
  { "tbsCertificate", 1073741826, "TBSCertificate"},
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 6, NULL },
  { "TBSCertificate", 1610612741, NULL },
  { "version", 1610653699, NULL },
  { NULL, 1073741833, "0"},
  { NULL, 2056, "0"},
  { "serialNumber", 1073741826, "CertificateSerialNumber"},
  { "signature", 1073741826, "AlgorithmIdentifier"},
  { "issuer", 1073741826, "Name"},
  { "validity", 1073741826, "Validity"},
  { "subject", 1073741826, "Name"},
  { "subjectPublicKeyInfo", 1073741826, "SubjectPublicKeyInfo"},
  { "issuerUniqueID", 1610637314, "UniqueIdentifier"},
  { NULL, 4104, "1"},
  { "subjectUniqueID", 1610637314, "UniqueIdentifier"},
  { NULL, 4104, "2"},
  { "extensions", 536895490, "Extensions"},
  { NULL, 2056, "3"},
  { "CertificateSerialNumber", 1073741827, NULL },
  { "Validity", 1610612741, NULL },
  { "notBefore", 1073741826, "Time"},
  { "notAfter", 2, "Time"},
  { "Time", 1610612754, NULL },
  { "utcTime", 1073741860, NULL },
  { "generalTime", 37, NULL },
  { "UniqueIdentifier", 1073741830, NULL },
  { "SubjectPublicKeyInfo", 1610612741, NULL },
  { "algorithm", 1073741826, "AlgorithmIdentifier"},
  { "subjectPublicKey", 6, NULL },
  { "Extensions", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "Extension"},
  { "Extension", 1610612741, NULL },
  { "extnID", 1073741836, NULL },
  { "critical", 1610645508, NULL },
  { NULL, 131081, NULL },
  { "extnValue", 7, NULL },
  { "CertificateList", 1610612741, NULL },
  { "tbsCertList", 1073741826, "TBSCertList"},
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 6, NULL },
  { "TBSCertList", 1610612741, NULL },
  { "version", 1073758211, NULL },
  { "signature", 1073741826, "AlgorithmIdentifier"},
  { "issuer", 1073741826, "Name"},
  { "thisUpdate", 1073741826, "Time"},
  { "nextUpdate", 1073758210, "Time"},
  { "revokedCertificates", 1610629131, NULL },
  { NULL, 536870917, NULL },
  { "userCertificate", 1073741826, "CertificateSerialNumber"},
  { "revocationDate", 1073741826, "Time"},
  { "crlEntryExtensions", 16386, "Extensions"},
  { "crlExtensions", 536895490, "Extensions"},
  { NULL, 2056, "0"},
  { "AlgorithmIdentifier", 1610612741, NULL },
  { "algorithm", 1073741836, NULL },
  { "parameters", 541081613, NULL },
  { "algorithm", 1, NULL },
  { "Dss-Sig-Value", 1610612741, NULL },
  { "r", 1073741827, NULL },
  { "s", 3, NULL },
  { "Dss-Parms", 1610612741, NULL },
  { "p", 1073741827, NULL },
  { "q", 1073741827, NULL },
  { "g", 3, NULL },
  { "pkcs-7-ContentInfo", 1610612741, NULL },
  { "contentType", 1073741836, NULL },
  { "content", 541073421, NULL },
  { NULL, 1073743880, "0"},
  { "contentType", 1, NULL },
  { "pkcs-7-DigestInfo", 1610612741, NULL },
  { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "digest", 7, NULL },
  { "pkcs-7-SignedData", 1610612741, NULL },
  { "version", 1073741827, NULL },
  { "digestAlgorithms", 1073741826, "pkcs-7-DigestAlgorithmIdentifiers"},
  { "encapContentInfo", 1073741826, "pkcs-7-EncapsulatedContentInfo"},
  { "certificates", 1610637314, "pkcs-7-CertificateSet"},
  { NULL, 4104, "0"},
  { "crls", 1610637314, "pkcs-7-CertificateRevocationLists"},
  { NULL, 4104, "1"},
  { "signerInfos", 2, "pkcs-7-SignerInfos"},
  { "pkcs-7-DigestAlgorithmIdentifiers", 1610612751, NULL },
  { NULL, 2, "AlgorithmIdentifier"},
  { "pkcs-7-EncapsulatedContentInfo", 1610612741, NULL },
  { "eContentType", 1073741836, NULL },
  { "eContent", 536895501, NULL },
  { NULL, 2056, "0"},
  { "pkcs-7-CertificateRevocationLists", 1610612751, NULL },
  { NULL, 13, NULL },
  { "pkcs-7-CertificateChoices", 1610612754, NULL },
  { "certificate", 13, NULL },
  { "pkcs-7-CertificateSet", 1610612751, NULL },
  { NULL, 2, "pkcs-7-CertificateChoices"},
  { "IssuerAndSerialNumber", 1610612741, NULL },
  { "issuer", 1073741826, "Name"},
  { "serialNumber", 2, "CertificateSerialNumber"},
  { "pkcs-7-SignerInfo", 1610612741, NULL },
  { "version", 1073741827, NULL },
  { "sid", 1073741826, "SignerIdentifier"},
  { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signedAttrs", 1610637314, "SignedAttributes"},
  { NULL, 4104, "0"},
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 1073741831, NULL },
  { "unsignedAttrs", 536895490, "SignedAttributes"},
  { NULL, 4104, "1"},
  { "SignedAttributes", 1612709903, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "Attribute"},
  { "SignerIdentifier", 1610612754, NULL },
  { "issuerAndSerialNumber", 1073741826, "IssuerAndSerialNumber"},
  { "subjectKeyIdentifier", 536879111, NULL },
  { NULL, 4104, "0"},
  { "pkcs-7-SignerInfos", 1610612751, NULL },
  { NULL, 2, "pkcs-7-SignerInfo"},
  { "pkcs-10-CertificationRequestInfo", 1610612741, NULL },
  { "version", 1073741827, NULL },
  { "subject", 1073741826, "Name"},
  { "subjectPKInfo", 1073741826, "SubjectPublicKeyInfo"},
  { "attributes", 536879106, "Attributes"},
  { NULL, 4104, "0"},
  { "Attributes", 1610612751, NULL },
  { NULL, 2, "Attribute"},
  { "pkcs-10-CertificationRequest", 1610612741, NULL },
  { "certificationRequestInfo", 1073741826, "pkcs-10-CertificationRequestInfo"},
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 6, NULL },
  { "pkcs-9-at-challengePassword", 1879048204, NULL },
  { "iso", 1073741825, "1"},
  { "member-body", 1073741825, "2"},
  { "us", 1073741825, "840"},
  { "rsadsi", 1073741825, "113549"},
  { "pkcs", 1073741825, "1"},
  { NULL, 1073741825, "9"},
  { NULL, 1, "7"},
  { "pkcs-9-challengePassword", 1610612754, NULL },
  { "printableString", 1073741855, NULL },
  { "utf8String", 34, NULL },
  { "pkcs-9-localKeyId", 1073741831, NULL },
  { "pkcs-8-PrivateKeyInfo", 1610612741, NULL },
  { "version", 1073741827, NULL },
  { "privateKeyAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "privateKey", 1073741831, NULL },
  { "attributes", 536895490, "Attributes"},
  { NULL, 4104, "0"},
  { "pkcs-8-EncryptedPrivateKeyInfo", 1610612741, NULL },
  { "encryptionAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "encryptedData", 2, "pkcs-8-EncryptedData"},
  { "pkcs-8-EncryptedData", 1073741831, NULL },
  { "pkcs-5-des-CBC-params", 1612709895, NULL },
  { NULL, 1048586, "8"},
  { "pkcs-5-des-EDE3-CBC-params", 1612709895, NULL },
  { NULL, 1048586, "8"},
  { "pkcs-5-aes128-CBC-params", 1612709895, NULL },
  { NULL, 1048586, "16"},
  { "pkcs-5-aes192-CBC-params", 1612709895, NULL },
  { NULL, 1048586, "16"},
  { "pkcs-5-aes256-CBC-params", 1612709895, NULL },
  { NULL, 1048586, "16"},
  { "Gost28147-89-Parameters", 1610612741, NULL },
  { "iv", 1073741831, NULL },
  { "encryptionParamSet", 12, NULL },
  { "pkcs-5-PBE-params", 1610612741, NULL },
  { "salt", 1073741831, NULL },
  { "iterationCount", 3, NULL },
  { "pkcs-5-PBES2-params", 1610612741, NULL },
  { "keyDerivationFunc", 1073741826, "AlgorithmIdentifier"},
  { "encryptionScheme", 2, "AlgorithmIdentifier"},
  { "pkcs-5-PBKDF2-params", 1610612741, NULL },
  { "salt", 1610612754, NULL },
  { "specified", 1073741831, NULL },
  { "otherSource", 2, "AlgorithmIdentifier"},
  { "iterationCount", 1611137027, NULL },
  { "1", 10, "MAX"},
  { "keyLength", 1611153411, NULL },
  { "1", 10, "MAX"},
  { "prf", 16386, "AlgorithmIdentifier"},
  { "pkcs-12-PFX", 1610612741, NULL },
  { "version", 1610874883, NULL },
  { "v3", 1, "3"},
  { "authSafe", 1073741826, "pkcs-7-ContentInfo"},
  { "macData", 16386, "pkcs-12-MacData"},
  { "pkcs-12-PbeParams", 1610612741, NULL },
  { "salt", 1073741831, NULL },
  { "iterations", 3, NULL },
  { "pkcs-12-MacData", 1610612741, NULL },
  { "mac", 1073741826, "pkcs-7-DigestInfo"},
  { "macSalt", 1073741831, NULL },
  { "iterations", 536903683, NULL },
  { NULL, 9, "1"},
  { "pkcs-12-AuthenticatedSafe", 1610612747, NULL },
  { NULL, 2, "pkcs-7-ContentInfo"},
  { "pkcs-12-SafeContents", 1610612747, NULL },
  { NULL, 2, "pkcs-12-SafeBag"},
  { "pkcs-12-SafeBag", 1610612741, NULL },
  { "bagId", 1073741836, NULL },
  { "bagValue", 1614815245, NULL },
  { NULL, 1073743880, "0"},
  { "badId", 1, NULL },
  { "bagAttributes", 536887311, NULL },
  { NULL, 2, "Attribute"},
  { "pkcs-12-CertBag", 1610612741, NULL },
  { "certId", 1073741836, NULL },
  { "certValue", 541073421, NULL },
  { NULL, 1073743880, "0"},
  { "certId", 1, NULL },
  { "pkcs-12-CRLBag", 1610612741, NULL },
  { "crlId", 1073741836, NULL },
  { "crlValue", 541073421, NULL },
  { NULL, 1073743880, "0"},
  { "crlId", 1, NULL },
  { "pkcs-12-SecretBag", 1610612741, NULL },
  { "secretTypeId", 1073741836, NULL },
  { "secretValue", 541073421, NULL },
  { NULL, 1073743880, "0"},
  { "secretTypeId", 1, NULL },
  { "pkcs-7-Data", 1073741831, NULL },
  { "pkcs-7-EncryptedData", 1610612741, NULL },
  { "version", 1073741827, NULL },
  { "encryptedContentInfo", 1073741826, "pkcs-7-EncryptedContentInfo"},
  { "unprotectedAttrs", 536895490, "pkcs-7-UnprotectedAttributes"},
  { NULL, 4104, "1"},
  { "pkcs-7-EncryptedContentInfo", 1610612741, NULL },
  { "contentType", 1073741836, NULL },
  { "contentEncryptionAlgorithm", 1073741826, "pkcs-7-ContentEncryptionAlgorithmIdentifier"},
  { "encryptedContent", 536895495, NULL },
  { NULL, 4104, "0"},
  { "pkcs-7-ContentEncryptionAlgorithmIdentifier", 1073741826, "AlgorithmIdentifier"},
  { "pkcs-7-UnprotectedAttributes", 1612709903, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "Attribute"},
  { "ProxyCertInfo", 1610612741, NULL },
  { "pCPathLenConstraint", 1611153411, NULL },
  { "0", 10, "MAX"},
  { "proxyPolicy", 2, "ProxyPolicy"},
  { "ProxyPolicy", 1610612741, NULL },
  { "policyLanguage", 1073741836, NULL },
  { "policy", 16391, NULL },
  { "certificatePolicies", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "PolicyInformation"},
  { "PolicyInformation", 1610612741, NULL },
  { "policyIdentifier", 1073741836, NULL },
  { "policyQualifiers", 538984459, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "PolicyQualifierInfo"},
  { "PolicyQualifierInfo", 1610612741, NULL },
  { "policyQualifierId", 1073741836, NULL },
  { "qualifier", 541065229, NULL },
  { "policyQualifierId", 1, NULL },
  { "CPSuri", 1073741853, NULL },
  { "UserNotice", 1610612741, NULL },
  { "noticeRef", 1073758210, "NoticeReference"},
  { "explicitText", 16386, "DisplayText"},
  { "NoticeReference", 1610612741, NULL },
  { "organization", 1073741826, "DisplayText"},
  { "noticeNumbers", 536870923, NULL },
  { NULL, 3, NULL },
  { "DisplayText", 1610612754, NULL },
  { "ia5String", 1612709917, NULL },
  { "200", 524298, "1"},
  { "visibleString", 1612709923, NULL },
  { "200", 524298, "1"},
  { "bmpString", 1612709921, NULL },
  { "200", 524298, "1"},
  { "utf8String", 538968098, NULL },
  { "200", 524298, "1"},
  { "OCSPRequest", 1610612741, NULL },
  { "tbsRequest", 1073741826, "TBSRequest"},
  { "optionalSignature", 536895490, "Signature"},
  { NULL, 2056, "0"},
  { "TBSRequest", 1610612741, NULL },
  { "version", 1610653699, NULL },
  { NULL, 1073741833, "0"},
  { NULL, 2056, "0"},
  { "requestorName", 1610637314, "GeneralName"},
  { NULL, 2056, "1"},
  { "requestList", 1610612747, NULL },
  { NULL, 2, "Request"},
  { "requestExtensions", 536895490, "Extensions"},
  { NULL, 2056, "2"},
  { "Signature", 1610612741, NULL },
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 1073741830, NULL },
  { "certs", 536895499, NULL },
  { NULL, 1073743880, "0"},
  { NULL, 2, "Certificate"},
  { "Request", 1610612741, NULL },
  { "reqCert", 1073741826, "CertID"},
  { "singleRequestExtensions", 536895490, "Extensions"},
  { NULL, 2056, "0"},
  { "CertID", 1610612741, NULL },
  { "hashAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "issuerNameHash", 1073741831, NULL },
  { "issuerKeyHash", 1073741831, NULL },
  { "serialNumber", 2, "CertificateSerialNumber"},
  { "OCSPResponse", 1610612741, NULL },
  { "responseStatus", 1073741826, "OCSPResponseStatus"},
  { "responseBytes", 536895490, "ResponseBytes"},
  { NULL, 2056, "0"},
  { "OCSPResponseStatus", 1610874901, NULL },
  { "successful", 1073741825, "0"},
  { "malformedRequest", 1073741825, "1"},
  { "internalError", 1073741825, "2"},
  { "tryLater", 1073741825, "3"},
  { "sigRequired", 1073741825, "5"},
  { "unauthorized", 1, "6"},
  { "ResponseBytes", 1610612741, NULL },
  { "responseType", 1073741836, NULL },
  { "response", 7, NULL },
  { "BasicOCSPResponse", 1610612741, NULL },
  { "tbsResponseData", 1073741826, "ResponseData"},
  { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
  { "signature", 1073741830, NULL },
  { "certs", 536895499, NULL },
  { NULL, 1073743880, "0"},
  { NULL, 2, "Certificate"},
  { "ResponseData", 1610612741, NULL },
  { "version", 1610653699, NULL },
  { NULL, 1073741833, "0"},
  { NULL, 2056, "0"},
  { "responderID", 1073741826, "ResponderID"},
  { "producedAt", 1073741861, NULL },
  { "responses", 1610612747, NULL },
  { NULL, 2, "SingleResponse"},
  { "responseExtensions", 536895490, "Extensions"},
  { NULL, 2056, "1"},
  { "ResponderID", 1610612754, NULL },
  { "byName", 1610620939, NULL },
  { NULL, 1073743880, "1"},
  { NULL, 2, "RelativeDistinguishedName"},
  { "byKey", 536879111, NULL },
  { NULL, 2056, "2"},
  { "SingleResponse", 1610612741, NULL },
  { "certID", 1073741826, "CertID"},
  { "certStatus", 1073741826, "CertStatus"},
  { "thisUpdate", 1073741861, NULL },
  { "nextUpdate", 1610637349, NULL },
  { NULL, 2056, "0"},
  { "singleExtensions", 536895490, "Extensions"},
  { NULL, 2056, "1"},
  { "CertStatus", 1610612754, NULL },
  { "good", 1610620948, NULL },
  { NULL, 4104, "0"},
  { "revoked", 1610620930, "RevokedInfo"},
  { NULL, 4104, "1"},
  { "unknown", 536879106, "UnknownInfo"},
  { NULL, 4104, "2"},
  { "RevokedInfo", 1610612741, NULL },
  { "revocationTime", 1073741861, NULL },
  { "revocationReason", 537157653, NULL },
  { NULL, 1073743880, "0"},
  { "unspecified", 1, "0"},
  { "UnknownInfo", 1073741844, NULL },
  { "NameConstraints", 1610612741, NULL },
  { "permittedSubtrees", 1610637314, "GeneralSubtrees"},
  { NULL, 4104, "0"},
  { "excludedSubtrees", 536895490, "GeneralSubtrees"},
  { NULL, 4104, "1"},
  { "GeneralSubtrees", 1612709899, NULL },
  { "MAX", 1074266122, "1"},
  { NULL, 2, "GeneralSubtree"},
  { "GeneralSubtree", 1610612741, NULL },
  { "base", 1073741826, "GeneralName"},
  { "minimum", 1610653699, NULL },
  { NULL, 1073741833, "0"},
  { NULL, 4104, "0"},
  { "maximum", 536895491, NULL },
  { NULL, 4104, "1"},
  { "TlsFeatures", 536870923, NULL },
  { NULL, 3, NULL },
  { NULL, 0, NULL }
};

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
	static asn1_node _gnutls_pkix1_asn = NULL;
	static int first = 1;
	asn1_node dn;
	int res, start, end;

	if (size > 10000) // same as max_len = 10000 in .options file
		return 0;

	if (first) {
		first = 0;

		// from _gnutls_global_init()
		res = asn1_array2tree(pkix_asn1_tab, &_gnutls_pkix1_asn, NULL);
		assert(res == ASN1_SUCCESS);
	}

	// from cert_get_issuer_dn()
	if ((res = asn1_create_element(_gnutls_pkix1_asn, "PKIX1.Certificate", &dn)) != ASN1_SUCCESS) {
		goto out;
	}

	// from cert_get_issuer_dn()
	res = asn1_der_decoding(&dn, data, size, NULL);
	if (res != ASN1_SUCCESS) {
		goto out;
	}

	// from cert_get_issuer_dn()
	res = asn1_der_decoding_startEnd(dn, data, size, "tbsCertificate.issuer", &start, &end);
	if (res != ASN1_SUCCESS) {
		goto out;
	}

out:
	asn1_delete_structure(&dn);

	return 0;
}
